Abstract
Verticillium wilt disease has become increasingly serious in many regions in China over the past few years. In this study, the widespread pathogen was identified as Verticillium longisporum (V. longisporum) by mt-SSU rDNA and cytochrome b sequence analysis. By using the primer pair HW1-F/HW1-R, which was designed based on the V. longisporum-specific rDNA-ITS sequence, a real-time PCR assay was developed for rapid and specific detection of the pathogen. The real-time PCR assay enabled sensitive quantification of V. longisporum in artificial and field-infected seedlings. This study provides a method for large-scale screening of Verticillium wilt-resistant resources for Chinese cabbage breeding.
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Acknowledgments
This work was supported in part by grants from the National Science-technology Support Plan Project (No. 2012BAD50G01), the Natural Science Foundation of China (No. 31401867), the National High Technology Research and Development Program of China (863 Program, No. 2012AA100103), and the Fund of China Agriculture Research system(CARS-25-A-11).
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Shuancang Yu and Tongbing Su contributed equally to this work.
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Supplementary Figure 1
Sequence analysis of mt-SSU rDNA and cytochrome b genes. (DOC 384 kb)
Supplementary Figure 2
Sensitivity and specificity detection of HW1-F/HW1-R (DOC 265 kb)
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Yu, S., Su, T., Chen, J. et al. Real-time PCR as a diagnostic tool for evaluating the resistance of Chinese cabbage cultivars to Verticillium wilt. Eur J Plant Pathol 143, 549–557 (2015). https://doi.org/10.1007/s10658-015-0706-8
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DOI: https://doi.org/10.1007/s10658-015-0706-8